STEBBINS has over a half century of experience with the design and construction of lined concrete vessels for liquid containment, and thousands have been constructed around the world with most still in service after several decades. We have constructed vessels more than 50’ (15m) diameter to contain nearly 150’ (46m) of liquid head. STEBBINS’ unique monolithic construction methods allow for a continuously rising structure during construction, which includes the process resistant lining, concrete structural core, and non-metallic exterior. Additionally, the high loading bearing strength capacity of the structure allows for the support of exterior loads and can support ancillary equipment without structural steel framework.
STEBBINS has developed various proprietary techniques for the installation of nozzles and inserts in a concrete vessel for proper liquid containment through a monolithic structure. These techniques allow for nozzles to be installed as the vessel is built and the height increases, eliminating the need to return later to install them, which may possibly result in cold joints and potential leak paths.
Projects involving brick and membrane linings for pressurized, high temperature service conditions are areas of expertise where STEBBINS rates second to none. Our robust linings can withstand harsh conditions where other bond dependent coatings, cladding, or solid alloys cannot.
We have lined more vessels of this type than any other company in the world. Projects include, but are not limited to, Pulp Digesters in the pulp & paper industry, Process Vessels reactors for methyl chloride, isopropyl alcohol, ethylbenzene, vinyl chloride monomer and cumene manufacture in the Chemical Industry, and Pressure Leach Autoclaves, Flash Tanks and ancillary vessels for the Metal/Mineral Refining Industry.
Our approach is based upon the development of proprietary formulae which considers not only pressure and temperature, but also the irreversible growth of ceramic bodies quite apart from thermal expansion. These formulae have been substantiated by the results of field strain gauge measurements as a part of our on-going technical development program.
REINFORCED CONCRETE CERAMIC CONSTRUCTION
Typically, we require the client to supply only a doweled foundation, on which STEBBINS constructs the vessel utilizing reinforced concrete and various masonry units. Most of these tanks are designed to handle operating conditions with a pH range of approximately 3 to 11 and temperature limits of approximately 212ºF (100ºC) for liquid and much higher temperature limits for gas. For more severe applications with pH and temperature outside above ranges, modifications to the basic design of this construction technique allow its use.
CHEMICAL RESISTANT LINER PLATE OR BRICK LINING WITH OR WITHOUT MEMBRANE OVER SUBSTRATE
The substrate is commonly carbon steel; however, retrofit projects may be installed over failed titanium, alloys, rubber or coatings with minimal surface preparation. In certain applications, after engineering review, STEBBINS can install a lining in a failed metal vessel as a life extension project.